daemon: further tweaks.
[gitweb.git] / update-index.c
index b825a11d2f6d8a53f5e42e4f157ba036a13edb59..5bbc3de2898caddfd019fac77c6a1daf922250cf 100644 (file)
@@ -5,6 +5,7 @@
  */
 #include "cache.h"
 #include "strbuf.h"
+#include "quote.h"
 
 /*
  * Default to not allowing changes to the list of files. The
  * like "git-update-index *" and suddenly having all the object
  * files be revision controlled.
  */
-static int allow_add = 0, allow_remove = 0, allow_replace = 0, allow_unmerged = 0, not_new = 0, quiet = 0, info_only = 0;
+static int allow_add;
+static int allow_remove;
+static int allow_replace;
+static int allow_unmerged; /* --refresh needing merge is not error */
+static int not_new; /* --refresh not having working tree files is not error */
+static int quiet; /* --refresh needing update is not error */
+static int info_only;
 static int force_remove;
+static int verbose;
 
 /* Three functions to allow overloaded pointer return; see linux/err.h */
 static inline void *ERR_PTR(long error)
@@ -32,13 +40,24 @@ static inline long IS_ERR(const void *ptr)
        return (unsigned long)ptr > (unsigned long)-1000L;
 }
 
+static void report(const char *fmt, ...)
+{
+       va_list vp;
+
+       if (!verbose)
+               return;
+
+       va_start(vp, fmt);
+       vprintf(fmt, vp);
+       putchar('\n');
+       va_end(vp);
+}
+
 static int add_file_to_cache(const char *path)
 {
        int size, namelen, option, status;
        struct cache_entry *ce;
        struct stat st;
-       int fd;
-       char *target;
 
        status = lstat(path, &st);
        if (status < 0 || S_ISDIR(st.st_mode)) {
@@ -69,42 +88,27 @@ static int add_file_to_cache(const char *path)
                        return error("lstat(\"%s\"): %s", path,
                                     strerror(errno));
        }
+
        namelen = strlen(path);
        size = cache_entry_size(namelen);
        ce = xmalloc(size);
        memset(ce, 0, size);
        memcpy(ce->name, path, namelen);
        fill_stat_cache_info(ce, &st);
+
        ce->ce_mode = create_ce_mode(st.st_mode);
-       ce->ce_flags = htons(namelen);
-       switch (st.st_mode & S_IFMT) {
-       case S_IFREG:
-               fd = open(path, O_RDONLY);
-               if (fd < 0)
-                       return error("open(\"%s\"): %s", path, strerror(errno));
-               if (index_fd(ce->sha1, fd, &st, !info_only, NULL) < 0)
-                       return error("%s: failed to insert into database", path);
-               break;
-       case S_IFLNK:
-               target = xmalloc(st.st_size+1);
-               if (readlink(path, target, st.st_size+1) != st.st_size) {
-                       char *errstr = strerror(errno);
-                       free(target);
-                       return error("readlink(\"%s\"): %s", path,
-                                    errstr);
-               }
-               if (info_only) {
-                       unsigned char hdr[50];
-                       int hdrlen;
-                       write_sha1_file_prepare(target, st.st_size, "blob",
-                                               ce->sha1, hdr, &hdrlen);
-               } else if (write_sha1_file(target, st.st_size, "blob", ce->sha1))
-                       return error("%s: failed to insert into database", path);
-               free(target);
-               break;
-       default:
-               return error("%s: unsupported file type", path);
+       if (!trust_executable_bit) {
+               /* If there is an existing entry, pick the mode bits
+                * from it.
+                */
+               int pos = cache_name_pos(path, namelen);
+               if (0 <= pos)
+                       ce->ce_mode = active_cache[pos]->ce_mode;
        }
+       ce->ce_flags = htons(namelen);
+
+       if (index_path(ce->sha1, path, &st, !info_only))
+               return -1;
        option = allow_add ? ADD_CACHE_OK_TO_ADD : 0;
        option |= allow_replace ? ADD_CACHE_OK_TO_REPLACE : 0;
        if (add_cache_entry(ce, option))
@@ -277,11 +281,39 @@ static int add_cacheinfo(const char *arg1, const char *arg2, const char *arg3)
        ce->ce_mode = create_ce_mode(mode);
        option = allow_add ? ADD_CACHE_OK_TO_ADD : 0;
        option |= allow_replace ? ADD_CACHE_OK_TO_REPLACE : 0;
-       return add_cache_entry(ce, option);
+       if (add_cache_entry(ce, option))
+               return error("%s: cannot add to the index - missing --add option?",
+                            arg3);
+       report("add '%s'", arg3);
+       return 0;
 }
 
-static struct cache_file cache_file;
+static int chmod_path(int flip, const char *path)
+{
+       int pos;
+       struct cache_entry *ce;
+       unsigned int mode;
+
+       pos = cache_name_pos(path, strlen(path));
+       if (pos < 0)
+               return -1;
+       ce = active_cache[pos];
+       mode = ntohl(ce->ce_mode);
+       if (!S_ISREG(mode))
+               return -1;
+       switch (flip) {
+       case '+':
+               ce->ce_mode |= htonl(0111); break;
+       case '-':
+               ce->ce_mode &= htonl(~0111); break;
+       default:
+               return -1;
+       }
+       active_cache_changed = 1;
+       return 0;
+}
 
+static struct cache_file cache_file;
 
 static void update_one(const char *path, const char *prefix, int prefix_length)
 {
@@ -293,12 +325,76 @@ static void update_one(const char *path, const char *prefix, int prefix_length)
        if (force_remove) {
                if (remove_file_from_cache(p))
                        die("git-update-index: unable to remove %s", path);
+               report("remove '%s'", path);
                return;
        }
        if (add_file_to_cache(p))
                die("Unable to process file %s", path);
+       report("add '%s'", path);
+}
+
+static void read_index_info(int line_termination)
+{
+       struct strbuf buf;
+       strbuf_init(&buf);
+       while (1) {
+               char *ptr;
+               char *path_name;
+               unsigned char sha1[20];
+               unsigned int mode;
+
+               read_line(&buf, stdin, line_termination);
+               if (buf.eof)
+                       break;
+
+               mode = strtoul(buf.buf, &ptr, 8);
+               if (ptr == buf.buf || *ptr != ' ' ||
+                   get_sha1_hex(ptr + 1, sha1) ||
+                   ptr[41] != '\t')
+                       goto bad_line;
+
+               ptr += 42;
+
+               if (line_termination && ptr[0] == '"')
+                       path_name = unquote_c_style(ptr, NULL);
+               else
+                       path_name = ptr;
+
+               if (!verify_path(path_name)) {
+                       fprintf(stderr, "Ignoring path %s\n", path_name);
+                       if (path_name != ptr)
+                               free(path_name);
+                       continue;
+               }
+
+               if (!mode) {
+                       /* mode == 0 means there is no such path -- remove */
+                       if (remove_file_from_cache(path_name))
+                               die("git-update-index: unable to remove %s",
+                                   ptr);
+               }
+               else {
+                       /* mode ' ' sha1 '\t' name
+                        * ptr[-1] points at tab,
+                        * ptr[-41] is at the beginning of sha1
+                        */
+                       ptr[-42] = ptr[-1] = 0;
+                       if (add_cacheinfo(buf.buf, ptr-41, path_name))
+                               die("git-update-index: unable to update %s",
+                                   path_name);
+               }
+               if (path_name != ptr)
+                       free(path_name);
+               continue;
+
+       bad_line:
+               die("malformed index info %s", buf.buf);
+       }
 }
 
+static const char update_index_usage[] =
+"git-update-index [-q] [--add] [--replace] [--remove] [--unmerged] [--refresh] [--cacheinfo] [--chmod=(+|-)x] [--info-only] [--force-remove] [--stdin] [--index-info] [--ignore-missing] [-z] [--verbose] [--] <file>...";
+
 int main(int argc, const char **argv)
 {
        int i, newfd, entries, has_errors = 0, line_termination = '\n';
@@ -307,6 +403,8 @@ int main(int argc, const char **argv)
        const char *prefix = setup_git_directory();
        int prefix_length = prefix ? strlen(prefix) : 0;
 
+       git_config(git_default_config);
+
        newfd = hold_index_file_for_update(&cache_file, get_index_file());
        if (newfd < 0)
                die("unable to create new cachefile");
@@ -355,6 +453,14 @@ int main(int argc, const char **argv)
                                i += 3;
                                continue;
                        }
+                       if (!strcmp(path, "--chmod=-x") ||
+                           !strcmp(path, "--chmod=+x")) {
+                               if (argc <= i+1)
+                                       die("git-update-index: %s <path>", path);
+                               if (chmod_path(path[8], argv[++i]))
+                                       die("git-update-index: %s cannot chmod %s", path, argv[i]);
+                               continue;
+                       }
                        if (!strcmp(path, "--info-only")) {
                                info_only = 1;
                                continue;
@@ -373,10 +479,21 @@ int main(int argc, const char **argv)
                                read_from_stdin = 1;
                                break;
                        }
+                       if (!strcmp(path, "--index-info")) {
+                               allow_add = allow_replace = allow_remove = 1;
+                               read_index_info(line_termination);
+                               continue;
+                       }
                        if (!strcmp(path, "--ignore-missing")) {
                                not_new = 1;
                                continue;
                        }
+                       if (!strcmp(path, "--verbose")) {
+                               verbose = 1;
+                               continue;
+                       }
+                       if (!strcmp(path, "-h") || !strcmp(path, "--help"))
+                               usage(update_index_usage);
                        die("unknown option %s", path);
                }
                update_one(path, prefix, prefix_length);